Water-oriented magnetic anisotropy transition

Sheng Qun Su, Shu Qi Wu, Masato Hagihala, Ping Miao, Zhijian Tan, Shuki Torii, Takashi Kamiyama, Tongtong Xiao, Zhenxing Wang, Zhongwen Ouyang, Yuji Miyazaki, Motohiro Nakano, Takumi Nakanishi, Jun Qiu Li, Shinji Kanegawa, Osamu Sato

研究成果: Contribution to journalArticle査読

抄録

Water reorientation is essential in a wide range of chemical and biological processes. However, the effects of such reorientation through rotation around the metal–oxygen bond on the chemical and physical properties of the resulting complex are usually ignored. Most studies focus on the donor property of water as a recognized σ donor-type ligand rather than a participant in the π interaction. Although a theoretical approach to study water-rotation effects on the functionality of a complex has recently been conducted, it has not been experimentally demonstrated. In this study, we determine that the magnetic anisotropy of a Co(II) complex can be effectively controlled by the slight rotation of coordinating water ligands, which is achieved by a two-step structural phase transition. When the water molecule is rotated by 21.2 ± 0.2° around the Co–O bond, the directional magnetic susceptibility of the single crystal changes by approximately 30% along the a-axis due to the rotation of the magnetic anisotropy axis through the modification of the π interaction between cobalt(II) and the water ligand. The theoretical calculations further support the hypothesis that the reorientation of water molecules is a key factor contributing to the magnetic anisotropy transition of this complex.

本文言語英語
論文番号2738
ジャーナルNature communications
12
1
DOI
出版ステータス出版済み - 12 2021

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 生化学、遺伝学、分子生物学(全般)
  • 物理学および天文学(全般)

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